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Gas‐Trennung mit Membranen
Author(s) -
Schulz Günter,
Michele Helmut,
Werner Udo
Publication year - 1982
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.330540409
Subject(s) - membrane , rectification , cascade , mass transfer , tandem , chemistry , unit operation , process engineering , chromatography , chemical engineering , materials science , engineering , electrical engineering , biochemistry , voltage , composite material
Gas Separation with membranes . Gas separation with membranes has already been tested in numerous fields of application, e. g. uranium enrichment or H 2 separation. In many of these processes the mass transfer units, so‐called permeators, have to be connected in tandem in order to achieve high concentrations. A most economical operating method provides for each case an optimization of the cascades with regard to the membrane materials, construction and design of module. By utilization of the concentration gradient along the membrane a new process development has been accomplished – the continuously operating membrane rectification unit. Investment and operating costs can be reduced considerably for a number of separating processes by combining a membrane rectification unit with a conventional recycling cascade. However, the new procedure requires that the specifications for the module construction, flow design, and membrane properties be reconsidered.